Many no longer recall the Great Midwest Flood despite its record-breaking precipitation, flooding and $13 billion price tag. Sure, 1993 seems like a long time ago, but I believe the reason the flood has left most people’s memory is because, over the last 25 years, the nation has experienced one devastating, record-breaking flood after another. Our memories are diluted by the frequency of such events.
In increasingly arid regions such as the western U.S., water managers are learning that careful management and restoration of watershed ecosystems, including thinning trees and conducting prescribed burns, are important tools in coping with a hotter, drier climate.
When 2019 started, California’s snowpack was at 67%. Now it’s at over 136% and rising. The atmospheric rivers that are dumping rain along coastal California are also dumping massive amounts of snow in the state’s Sierra Nevada.
Although it might sound absurd to those who still recall five years of withering drought and mandatory water restrictions, researchers and engineers warn that California may be due for rain of biblical proportions — or what experts call an ARkStorm. … In heavily populated areas of the Los Angeles Basin, epic runoff from the San Gabriel Mountains could rapidly overwhelm a flood control dam on the San Gabriel river and unleash floodwaters from Pico Rivera to Long Beach, says a recent analysis by the U.S. Army Corps of Engineers.
A landslide that dumped about 6 million cubic yards of rock and debris across California Highway 1 near near Big Sur, California, in May 2017 was the result of drought followed by deluge, a team of scientists say. … The researchers determined that water replaces air in the tiny spaces between soil particles, which greatly increased the pressure on those particles, speeding up the rate of collapse.
At the end of 2017, several local rice farmers teamed up with researchers for a pilot program known as “Fish in the Fields” through the Resource Renewal Institute, a nonprofit research and natural resource policy group, to see what would happen when fish were introduced to flooded rice fields. Now in its second year of experiments, researchers have concluded that it works, with methane – a climate-changing byproduct of rice agriculture much more detrimental than carbon dioxide – being reduced by about two-thirds, or 65 percent, in flooded fields that had fish in them.
Thursday, the National Oceanic and Atmospheric Administration announced that El Niño — the periodic warming of the tropical Pacific Ocean, with weather consequences worldwide — has officially arrived. El Niño typically peaks between October and March, so it’s pretty late in the season for a new one to form. This year’s El Niño is expected to remain relatively weak, but that doesn’t mean this one won’t be felt — in fact, its cascading consequences already in motion.
Gov. Stephen Roe Lewis of the Gila River Indian Community said in a statement Thursday that a decision by House Speaker Rusty Bowers to move forward with a contentious water bill threatens the community’s plan to support the drought agreement. The Gila River Indian Community’s involvement is key because it’s entitled to about a fourth of the Colorado River water that passes through the Central Arizona Project’s canal.
Major dams in California are five times more likely to flood this century than the last one due to global warming, a new study finds, possibly leading to overtopping and catastrophic failures that threaten costly repairs and evacuations. That means Californians can expect more disasters like the Oroville Dam, whose overflow channel failed in 2017 after days of flooding had filled state reservoirs to 85% of their capacity.
Over the past two years, scared off by the anticipated costs of storing water there, Valley agricultural irrigation districts have steadily reduced their ownership shares of Sites. The powerful Metropolitan Water District of Southern California … is nearly as big an investor in Sites as all of the Sacramento Valley farm districts combined. Metropolitan agreed Tuesday to contribute another $4.2 million to help plan the project.
The Colorado River has been dammed, diverted, and slowed by reservoirs, strangling the life out of a once-thriving ecosystem. But in the U.S. and Mexico, efforts are underway to revive sections of the river and restore vital riparian habitat for native plants, fish, and wildlife. Last in a series.
Redlands’ wastewater treatment facility needs $40 million in upgrades soon thanks to years of deferred maintenance, officials say. But it could be worse – building a new facility would cost $100 million. The original plant was built in the 1960s, and the last major changes were made in 2004.
Two experts from Stanford’s Water in the West program explain the potential impacts on the future of water in California of the proposed plan to downsize the $17 billion Delta twin tunnels project. … Leon Szeptycki, executive director of Stanford’s Water in the West program, and Timothy Quinn, the Landreth Visiting Fellow at Water in the West, discussed the future of water in California and potential impacts of a tunnel system.
There may be more in the sewage-tainted water that regularly spills over the border from Tijuana than many San Diegans realize. The cross-border pollution also contains potentially dangerous industrial and agricultural chemicals, according to a draft report compiled by U.S. Customs and Border Protection that was circulated to officials throughout the region on Wednesday.
The interrelated nature of water issues has given rise to a management approach that integrates flood control, environmental water, and water supply. The Yuba Water Agency manages its watershed in this kind of coordinated manner. We talked to Curt Aikens, the agency’s general manager, about the lessons they’ve learned from this “integrated management” approach.
An atmospheric river storm that walloped the Bay Area on Thursday, causing traffic snarls, flood scares and at least one major mudslide that wrecked homes and cars, has finally left Northern California. … The biggest storm of the winter so far also delivered something quite valuable: a boost to the Sierra Nevada snowpack to 102 percent of its historical average for April 1. In other words, California already has the equivalent of an average winter’s snow supply, with six weeks still left to go in this year’s winter rain and snow season.
Farmers, water managers and government agencies agree: Groundwater sustainability is critical for California. But achieving it could bring significant changes to the state’s agricultural landscape, according to speakers at a Sacramento gathering of water professionals.
Rep. John Garamendi, D-Solano, introduced a bill in Congress to remove a provision from the Water Resources Development Act of 1986 to allow presidents to divert disaster recovery funds during a declared state of emergency. In January, during the government shutdown, senior Defense department officials reportedly discussed with President Donald Trump the possibility of using a portion of funds set aside by the U.S. Army Corps of Engineers for civil works projects to fund 315 miles of barrier along the Mexican border.
The wet weather broke a daily rainfall record in Sacramento, with 1.6 inches of rain recorded at the Sacramento Executive Airport over 24 hours. But the state’s network of flood-control dams and levees appeared to handle the deluge without major problems. The National Weather Service issued a flood warning Wednesday morning for the Sacramento Valley, and it was expected to remain in place until 6 p.m. Thursday as heavy and moderate rainfall was forecast to continue through Thursday.
The hottest and driest summers in state history have occurred within the last 20 years … Her bill, if passed, would allocate $2 million in funding from the Office of Planning and Research for a competitive grant program designed to develop “specified planning tools for adapting to climate change in the agricultural sector.”